Process for treating oils



Patented June 26, 1923..

l TES GERALD EDWIN HUGHES, SR, OF KANSAS CITY, MISSOURI.

PROCESS FOR TREATING OILS.

No Drawing.

To all whom it may concern:

Be it known that I, GERALD EDWIN HUGHES, Sn, a citizenot the nitedStates, and a resident of the city of Kansas City, in the county ofJackson and State of Missouri, have invented certain new and usefulImprovements in a Process for Treating Oils; and I do hereby declarethat the following is a full, clear, and exact description of the same.

This invention relates to a process and the product formed by treatinglinseed oil or other oils to produce a more valuable and durable productfor use in paint and varnish making.

Hitherto the tanked or raw linseed oil has always been laboriouslyrefined and treated to produce a liquid drier or japan which treatmentnecessitated complex apparatus and the lapse of much time to obtain agood product.

It is an object of the invention to provide a method for the productionof a very powerful drier and one which gives a much more durable paintvIt is also an obj vide a method of producing a linseed or other suitableoil paint constituent in amucli shorter time and in a more positivemanner.

It is a further object of the invention to provide a cheaper oil forpaint making and one which functions in a manner equal if not superiorto the best grades of linseed oil now on the market.

Otherand further objects of this invention will appear from thedisclosures in the specification.

The invention (in a preferred form) is hereinafter more fully described.

-'lhe process is as follows:

The linseed or other oil, is put into standard copper kettles,preferably in 100 gallon lots, though larger or smaller quantities maybe treated if desired. For each 100 gallons of oil there is providedapproxim tely 100 pounds of ghii'e, either bone or not glue consistingpreferably of one lump contained in a wire basket about 18"X36".

The oil and glue are then gradually heated over a uniform fire, which iskept carefully regulated. The glue originally floats on the surface ofthe oil but after some heating it settles to the bottom of thecontaining basket. In about an hour the glue begins to expand, and soonattains a spongy consistency. As soon as this expansion'occurs, the lumpApplication filed February 14, 1921.

ect of this invention to pro Serial No. 444,935.

The mass of the glue is not incorporated" into the oil, as the surfaceof the lump hardens and forms a crust, through which the oil permeatesand only certain parts or molecules of the glue go into solution.

After a time action ceases and the surface of the oil-becon1esquiescent. The baskets containing the lumps of glue are then lit'tcd outof the oil and the oil is subjected to further heat for approximatelyeight hours at a slow steady rate which. however, is never allowed torise to the boiling point of the oil.

There is hereby produced an oil which has been tested and found superiorin every re spect to any pure linseed oil or any oil on the market, andforms a dry hard varnish having exceptionally durable and lastingqualities. Samples of paint and varnish have been made with this oil andapplied to cement, iron, plaster walls, and the like, and exposed to allconditions of use, weather, etc., with remarkable results. The residueof glue remaining in the baskets is placed in troughs and covered halfover with water, the action of the water being to soften the glue to ajelly for a second treatment. In the original treatment the glue absorbsmuch of the oil and gains about 100% in weight, besides acquiring asolid rock-like consistcncy. llowever, in about a weeks time the waterhas materially softened the lumps of oily glue which are then put intodouble boilers and heated until all the water is extracted. To theresidue is added kerosene, or coal oil, in the proportion of .one gallonof kerosene to one pound of jelly, and this is heated gently for aboutsix hours with practically a duplication of the original method. andthis second run of oil is usually added to the first in approximatelythe proportions of one-third to two-thirds of the latter. This resultsin a particularly good product, tested and found to be superior to anyoils now on the market.

Another method which yields similar results consists in treating "100gallons of kerosene or coal oil with 100 pounds of glue in the samemanner as originally outlined above in the case of linseed oil. Thistreated kerosene is then mixed with either raw or treated linseed oil inequal parts, say 100 gallons of kerosene, with 100 gallons of linseedoil.

After these treatments as described a rcsiduestill remains oftheoriginal .glue. This residue is mixed with litharge and rosin inapproximately equal proportions and gradually heated, the resin meltsfirst.

' and a slight polymerization may also take which place. These partlysaponified glycerides are particularly good oxygen absorbers, which,whenthe oil is spread out in thin films. are converted into an elasticmass forms a durable and lasting varnish.

The oil as produced by this process may be mixed with inferior andcheaper oils and still function as well as the highest grade hoiledlinseed oil now on the market, thus ell'ecling a considerable saving.

I am aware that numerous details of the process may be varied througha'wide range without departing from the principles of this invention,and I therefore do not purpose limiting the patentgranted otherwise thannecessitated by the prior art.

l claim as my invention:

1. A method of treating oils including heating a vegetable oil of thedrying type with a quantity of glue.

2. A method of treating vegetable oils of the drying type includingheating the oil with a quantity of glue in the proportions of one poundof glue to one gallon of oil.

A method of treating oils including hcatinglinseed oil with a quantityof glue.

4. A method of treating oils including heating linseed 011' with aquantity of glue 1 in the proportions of one pound of glue to one gallonof oil until chemical action ceases.

5. A method of treating vegetable oils of the drying type includingheating the oil with a quantity of glue until chemical action ceases,then removing the glue and subjecting the oil to a slow heat forapproximately eight hours.

6. The method of treating linseed oil which includes heating oil andglue together 'in the proportions of one gallon of oil to one pound ofglue until the glue swells, then suspending the glue in the heated oilin such a manner that one third of its volume is submerged, continuingto heat until action ceases, removing the glue and finally heating theoil for eight additional hours.

7. A method of making paints and varnishes including heating linseed oilwith a quantity of glue until chemical action ceases, removing theglue,soaking the same in water to soften it, and heating the resultantjelly with kerosene.

8. A method of making paints and varnishes including heating linseed oilwith a quantity i of glue until chemical action ceases, removing theglue, soaking the same in water to soften it, and heating the re sultantjelly with kerosene, then maxing the treated linseed oil with thetreated kerosene.

9. A method of making paints and vlar- .nishes including heating linseedoil with glue, in the proportions of one gallon of oil to one pound ofglue, until action ceases, re-

moving the glue, soaking the same in water to soften it, and heating theresultant jelly .wit'hkerosene in the proportions of one pound of thejelly to one gallon of kerosene,

. then mixing the treated linseed oilwith the treated kerosene. I

10. An oil for paints including linseed oil and kerosene treated withglue.

11. Anoil for paints including linseed oil treated with glue. i

In testimony whereof I have hereunto subscribed my name in the presenceof two subscribing witnesses.

, GERALD EDXVIN HUGHES, Sn.

Witnesses:

XV. M. DYER, PANSY PERKINS.

